Rewind mechanism.



A. ANDERSON.

REWIND MECHANISM. APPLICATION FILED JUNE 11, 1910.

- 1 ,0 82,253. PatentedDec. 23, 1913.

2 SHEETS-SHEET 1.

A; ANDERSON.

REWIND MECHANISM.

APPLIGATION FILED JUNE 11, 1910.

Patented Dec. 23, 1913,

2 SHEETS-SHEET 2'.

- {av/W UNITED STATES PATENT OFFICE.

ALFRED ANDERSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO CONCORD COMPANY, OFCHICAGO, ILLINOIS, A CORPORATION OF MAINE.

REWIND MECHANISM.

Specification of Letters Patent.

Patented Dec. 23, 1913.

Application filed June 11, 1910. Serial No. 566,285.

To all whom it may concern.

Be it known that I, ALFRED ANDERSON, a citizen of the United States ofAmerica, and resident of Chicago, Cook county, Illinois, have invented acertain new and useful Improvement in Rewind Mechanism, of which thefollowing is a specification.

My invention relates to piano-players or player pianos, or other similarmusical instruments in which perforated music is employed, and in whichprovision is made for unwinding and rewinding the music.

It relates more particularly to the mechanism for unwinding the music,and for then re-winding the same after the musical composition has beenplayed.

The object of my invention is, therefore, to provide an improved andhighly eflicient mechanism for unwinding and rewinding the music, and toprovide a rewind, as it is sometimes called, of this character whichwill roll the music tightly and smoothly and without danger of tearing,as well as quickly and easily, as will herein after more fully appear. 0

To the foregoing and other useful ends, my invention consists in mattershereinafter set forth and claimed.

In the accompanying drawings-Figure 1 .is a front elevation of a re-windmechanism embodying the principles of my invention. Fig. 2 is anenlarged front elevation of the clutch involved in said mechanism. Fig.3 is an enlarged'detail section, in two horizontal planes, on line 3-3in Fig. 1. Fig. 4 is an enlarged side elevation of the mechanism shownin Fig. 1.

As thus illustrated, the mechanism is supported by suitable framewor A.The usual tracker-bar B is supported upon the said framework. A spindleC is mounted in bearings on the said framework, at a point above thetracker-bar, and is adapted to engage one end of the spool or musicroll, in the usual and well known manner. The roll D is mounted insuitable bearings on the frame, below the said tracker-bar, and isprovided with a gear wheel d fixed to one end thereof, as shown. Thehorizontal shaft E is mounted in hearings on the framework, and isprovided at its end with a pinion e that engages the upper edge of thegear wheel d, the said shaft being movable endwise in its bearing. Thisshaft is driven by a sprocket chain connection 6. The

sprocket wheel 6 is loose on the shaft E, and is provided with a pin 6 Asprocket chain c connects the sprocket wheel 6 with the sprocket wheel 0on the spindle C, whereby the latter is driven to re-wind the music. Theclutch member 0 is mounted on the shaft E, and connected therewith bymeans of a screw or other similar well known device, being provided witha pin 6 adapted to be engaged by the pin 6 to rotate the said shaft. Theclutch member 6 has a circumferential groove 6 which groove is engagedby a pin e This pin 0 is mounted on the end of an arm 0", which latteris carried by a vertical rock shaft F, said shaft being supported insuitable bearings f, f on the frame. This shaft is controlled by theoperator through the medium of a hand lever G, which is connectedtherewith through the medium of a rod 9, a rock shaft 9, another rod andan arm or lever F. A brake shoe H is adapted to engage the disk (Z 011the end of the roll D, when the music is re-wound, to prevent the saidroll from rotating too fast, and is operated by a rod it that connectswith an arm it on the shaft F. A brake shoe I is pivoted upon the frameand adapted to engage the periphery of the disk 0 on the spindle C. Theshaft F is provided at its upper end with an arm f which arm has itsfree end portion formed with a cam f that engages the outer end of thebrake shoe I, whereby the latter is controlled. A spring 2' is securedto the under side of the brake shoe I and arranged to engage astationary support Y", whereby the said brake shoe tends normally toengage the periphery of the disk 0.

The operation is as follows: When the pin 6 is out of engagement withthe pin 6 and the pinion e is in engagement with the gear wheel (Z, thetransmission of power is then to the roll D, whereby the music isunwound from the roll or spool engaging the spindle C. At this time thebrake shoe I en gages the disk 0, because the cam portion 7' is out ofengagement with the end of the said brake shoe. This keeps the spindle Cfrom rotating too fast. hen the music is to be re-wound, the hand leverG is then operated to turn the rock shaft F, thus causing the pin 6 toengage the pin 6 and withdrawing the pinion from engagement with thegear wheel (Z. This opens the transmission of power from the shaft E tothe roll D, and closes the transmission from the said shaft through thesprocket chain to the spindle G. Also, at this time, the brake shoe H isbrought into engagement with the disk (Z, and the cam portion f isbrought into engagement with the brake shoe I, caus ing the latter to bedisengaged from the disk 0 on the spindle. In this way the said spindleis rotated to re-wind the music, and the brake shoe II at this timeprevents the roll D from rotating too fast. In this way the music isunwound and re-wound in a smooth and easy manner, and with properattention in each case, withoutdanger of tearing or injury thereto.

I do not, of course, limit myself to the exact construction shown anddescribed.

lVhat I claim as my invention is:

1. I11 a player mechanism, a vertical support, a tracker bar, a rollspindle above the tracker bar, extending through said support, a driveshaft below the tracker bar, extending through the said support, atakeup roll below said driving shaft, a gear wheel for said rolldisposed inside of said support, a pinion on the end of said shaft,engaging said gear wheel, a power transmitting con nection between saidshaft and spindle, loose on the shaft, a clutch for controlling saidconnection, fixed on the shaft, a vertical rock shaft, a hand leverconnected for operating said rock shaft, means on said rock shaft foroperating said clutch, serving also to shift the shaft endwise todisengage said pinion from said gear wheel, by moving the pinion towardsaid support, a brake for the said spindle operated by said rock shaft,a flange for sai roll, a brake for said flange, a rod extending throughsaid support to operate said last mentioned brake, and means forconnecting said rod with said rock shaft.

2. In a player mechanism, a vertical support, a tracker bar, a rollspindle above the tracker bar, extendin through said support, a driveshaft below the tracker bar, extending through the said support, atake-up roll below said driving shaft, a gear wheel on one end of saidroll, disposed inside of said support, a pinion on the end of saidshaft, engaging said gear wheel, a power transmitting connection betweensaid shaft and spindle, loose on the shaft, a clutch for controllingsaid connection, fixed on the shaft, 2 vertical rock shaft, a hand leverconnected for operating said rock shaft, means on said rock shaft foroperating said clutch, serving also to shift the shaft endwise todisengage said pinion from said gear wheel, by moving the pinion towardsaid support, a cam on the upper end of said rock shaft, a brakeprovided with means for engaging the under side of said cam, when saidshaft is rocked, means on said spindle for engaging the top of saidbrake, a spring acting 011 the bottom of said brake, a brake for saidroll, disposed inside of said support, a crank arm on the lower end ofsaid rock shaft, means engaging said crank arm to support the said rockshaft, and means for connecting said arm with said last mentioned brake.

Signed by me at Chicago, Illinois, this 7th day of June, 1910.

ALFRED ANDERSON. lVitnesses S. LEWIS, WM. B. DURNION.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

